Most Americans Still Get This Social Security Rule Wrong
Many Americans still think 65 is Social Security’s full retirement age. Here’s how the mistake can reduce your check and what to review before filing.
Age 65 has been tied to retirement for so long that it is easy to assume it is also when you qualify for your full Social Security benefit. That belief is still surprisingly common, with 55% of Americans in the Allianz Life 2025 Annual Retirement Study giving age 65 as the answer.
The mix-up may seem harmless when retirement is still years away, but it can lead to financial mistakes once you start deciding when to claim. Getting the age wrong could cost you more than you expect, and here’s what to know before you file.
Find Out: 13 moves seniors could benefit from but often forget about.
Why age 65 still feels like the right retirement number
Age 65 really was Social Security’s full retirement age for decades, which helps explain why the number still sticks in people’s minds. Congress approved a gradual increase in the full retirement age in 1983, with the first increase taking effect for workers who reached age 62 in 2000.
Medicare still begins at 65, so the two programs are easy to mix up. You may be signing up for Medicare while your full Social Security benefit is still two years away.
Shopping for cheaper auto insurance? Enter your zip code here to get started.
What filing at 65 could cost you in monthly benefits
If your full retirement age is 67, filing at 65 means claiming 24 months early and taking a permanent reduction of about 13.3%. A $2,000 monthly benefit at 67 would fall to about $1,733 at 65, leaving you with roughly $267 less each month, or about $3,200 less over a year.
Your benefit doesn’t jump back to the full amount once you turn 67, so the smaller starting check can follow you throughout retirement.
Waiting longer can leave you with a bigger monthly check
At 67, you receive 100% of the benefit based on your earnings record. Waiting beyond full retirement age can increase that amount by about 8% per year until 70, so the same $2,000 monthly benefit at 67 could grow to about $2,480 at 70.
Waiting until 70 also means covering three years of expenses without Social Security. If you have enough savings or other income to handle that gap, the larger monthly benefit can pay off over a longer retirement, with the break-even point often falling somewhere in your early 80s.
Save Money: Things to cut when living on retirement (many people ignore #11)
Advertisement
Working after 65 can trigger another Social Security rule
If you claim Social Security before full retirement age and keep working, earning too much can temporarily reduce the benefits you receive. In 2026, you can earn up to $24,480 without any withholding, and Social Security takes back $1 in benefits for every $2 you earn above that limit.
For example, someone earning $50,000 at age 65 would be about $25,500 over the limit, which could lead to roughly $12,750 in benefits being withheld for the year. Once you reach full retirement age, Social Security adjusts your benefit to account for the months when payments were withheld, allowing you to receive a higher monthly amount going forward.
Because Social Security later credits you for months when benefits were withheld, this rule works differently from the permanent reduction that comes with claiming early.
Why most people don’t have a plan for when to claim
The same Allianz study found that only 39% of Americans have a plan for how they will claim Social Security, while 54% are still unsure about the best time to start. At the same time, 73% know that waiting as long as possible can lead to a larger benefit, suggesting the harder part is figuring out when waiting makes sense for their own retirement.
General advice can only take you so far because your claiming decision depends on what Social Security would actually pay you at different ages.
How to check your own numbers before you decide
Your my Social Security account at ssa.gov can show what your monthly benefit is projected to be at different claiming ages based on your earnings record. Those estimates become much more useful once you know your exact full retirement age, which is 67 if you were born in 1960 or later and somewhere between 66 and 67 if you were born from 1955 through 1959.
From there, compare what Social Security estimates you would receive at different ages, such as 65 and 70. Seeing the difference in actual dollars makes it easier to understand what filing sooner could cost you each month and how much waiting could add to your benefit.
Retire like the rich: 14 ways you could build wealth in your 50s.
Bottom line
Age 65 may be the number you have always associated with retirement, and Medicare gives you a good reason to have it circled on the calendar. But Social Security follows a different timeline, and treating the two ages as interchangeable could leave you with less monthly income than you expected.
Your own benefit estimates can help you choose a claiming age that fits your retirement and leaves you with more income each month. A bigger check can also make it easier to save money in retirement without relying as heavily on your savings.
More from FinanceBuzz: